Fixed b/w theme disabled color

app/src/main/res/color/bw_textcolor.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="@color/grey" android:state_enabled="false" />
+    <item android:color="@color/white" />
+</selector>

app/src/main/res/color/bw_textcolor_inverse.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="@color/grey" android:state_enabled="false" />
+    <item android:color="@color/black" />
+</selector>

app/src/main/res/values/colors.xml

@@ -135,5 +135,6 @@
 
     <color name="white">#ffffffff</color>
     <color name="black">#ff000000</color>
+    <color name="grey">#ff7f7f7f</color>
     <color name="transparent">#00000000</color>
 </resources>

app/src/main/res/values/styles.xml

@@ -351,13 +351,13 @@
         <item name="colorPrimaryDark">@color/blackAndWhitePrimaryDark</item>
         <item name="colorAccent">@color/white</item>
 
-        <item name="android:textColor">@color/white</item>
-        <item name="android:textColorPrimary">@color/white</item>
-        <item name="android:textColorSecondary">@color/white</item>
-        <item name="android:textColorTertiary">@color/white</item>
-        <item name="android:textColorPrimaryInverse">@color/black</item>
-        <item name="android:textColorSecondaryInverse">@color/black</item>
-        <item name="android:textColorTertiaryInverse">@color/black</item>
+        <item name="android:textColor">@color/bw_textcolor</item>
+        <item name="android:textColorPrimary">@color/bw_textcolor</item>
+        <item name="android:textColorSecondary">@color/bw_textcolor</item>
+        <item name="android:textColorTertiary">@color/bw_textcolor</item>
+        <item name="android:textColorPrimaryInverse">@color/bw_textcolor_inverse</item>
+        <item name="android:textColorSecondaryInverse">@color/bw_textcolor_inverse</item>
+        <item name="android:textColorTertiaryInverse">@color/bw_textcolor_inverse</item>
         <item name="android:textColorLink">@color/lightBluePrimary</item>
 
         <item name="colorWarning">@color/lightColorWarning</item>